More knowledge, more memories. We should review and recall in time. According to the law behind Ebbinghaus's forgetting curve, we know that once a knowledge is mastered, it will soon be forgotten. If we repeat it many times, it's hard to forget. Therefore, what we need to do is to remember and repeat many times.
It is better to recite the knowledge on the first day and read it again the next day than not to read it at all after memorizing it. If we take our time and repeat our memories, we will remember our knowledge more and more firmly.
And it will be easy to read the first day's knowledge the next day, because after all, it has been memorized for a day, and it is not difficult to remember it again.